# Grid and Energy Data API
GET/v1/griddata/power/prices/{market}/{region}/day-ahead
Forecast prices per interval for one local calendar day: the ENTSO-E day-ahead auction for EU zones (published around 13:00 CET), AEMO pre-dispatch for NEM regions (next 40 hours, 30-minute). GB and US regions answer with basis 'unavailable'. Refreshes every 30 minutes.
Price
$0.01/ callEdge cache
900s
Uptime 24h
96.36%
p95
681ms
MCP tool
griddata_power-prices-market-region-day-ahead
The Grid and Energy Data API provides wholesale electricity prices per market region, including AEMO NEM, Elexon GB, ENTSO-E EU zones, and EIA US balancing authorities. It also offers grid demand and generation by fuel, NESO carbon intensity, and derived cheapest-window signals for charging and demand response. One schema is used across four market structures, with UTC timestamps, integer micro units, and region codes in one list.
Parameters
| Name | In | Type | Description |
|---|---|---|---|
| market* | path | string | |
| region* | path | string | |
| date | query | string | Local calendar day, default tomorrow |
Code
# 1. No key, no payment: the gateway answers 402 with the price
curl -i "https://api.realtimeapi.ai/v1/griddata/power/prices/nem/NSW1/day-ahead"
# 2. Pay: retry with a signed x402 payment (any x402 client builds this header)
curl "https://api.realtimeapi.ai/v1/griddata/power/prices/nem/NSW1/day-ahead" -H "PAYMENT-SIGNATURE: $X402_PAYMENT"// npm i @x402/fetch @x402/core @x402/evm viem
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";
const client = x402Client.fromConfig({ schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(privateKeyToAccount(PRIVATE_KEY)) }] });
const pay = wrapFetchWithPayment(fetch, client);
const data = await (await pay("https://api.realtimeapi.ai/v1/griddata/power/prices/nem/NSW1/day-ahead")).json();
console.log(data);# pip install "x402[requests,evm]==2.27.0" eth-account
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact import register_exact_evm_client
client = x402ClientSync()
register_exact_evm_client(client, EthAccountSigner(Account.from_key(PRIVATE_KEY)))
session = x402_requests(client)
print(session.get("https://api.realtimeapi.ai/v1/griddata/power/prices/nem/NSW1/day-ahead").json())curl "https://api.realtimeapi.ai/v1/griddata/power/prices/nem/NSW1/day-ahead" -H "X-API-Key: $RTAPI_KEY"Frequently asked questions
What is the API endpoint?
The API endpoint is /power/prices/{market}/{region}/day-ahead
What is the price of the API?
$0.010
What data is provided by the API?
Wholesale electricity prices, grid demand, generation by fuel, and carbon intensity